[Plugin: List category posts] Fatal error

Is this the error?
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /whatever/wp-content/plugins/list-category-posts/include/CatListDisplayer.php on line 9

If so, you should read the Plugin’s FAQ:
http://wordpress.stackexchange.com/questions/9338/list-category-posts-plugin-upgrade-fails-fatal-error/9340#9340